UPC Protherm 20 Oxygen Monitor and Controller
The PROTHERM 20 is designed for cost-effective measurement and control of excess oxygen. The unit provides simple 2-point (on/off) control, continuous PID control, or 3-point stepping control.
Special Features:
Furnace Atmosphere Control
- Monitoring and PID control of: C content, oxygen content or dewpoint
- Input for connecting lambda-sensor
- Automatic and manual sensor purging
- Sooting alarm
- Gas-correction input CO or hydrogen (H2) compensation
- Calibrating function for the atmosphere input
Features:
- Three analog inputs, two are universal
- Two freely configurable analog output, e.g. as process value output
- High-impedance mV input for O2 sensors
- Oxygen calculation (ppm /%O2, automatic adaptation)
- Carbon content calculation (%C, 2 decimals)
- Dewpoint calculation (°C, °F selectable)
- Self-Tuning to the setpoint without oscillation
- Valve controller with position feedback and DAC monitoring
- 3-point controller for water, fan and oil cooling
- Universal continuous/switching version, i.e. reduced stocks of spare parts
- 100 ms cycle time, also suitable for fast control loops
- 20 ms as shortest pulse-length
- Customer-specific Linearization for all sensors
- Settings can be blocked via password and internal switch for high security
- Extended temperature range up to 140°F (60°C) allows mounting close to the process
- Easy 2-point or offset measurement correction
- Monitoring of heating current and output circuit
- Emergency operation after sensor break by means of the output hold function
- Logical combination of digital outputs, e.g. for general alarm
- Manual gain scheduling
- RS 422/485 Modbus RTU interface
- PROFIBUS-DP interface
- Built-in transmitter power supply<
- Splash-water proof front (IP 65)
- Front interface port
- BluePort® Front interface and BlueControl software
- Customer specific data-set
- Maintenance manager and error list
- Day & Night display shows plain text and bar graphs
- Type tested to EN 14597 (replaces DIN 3440) and cULus